Table 1.

Grade of damage to esophageal mucosa

Group	Grade (n/n%)
	0	I	II	III
n-3 PUFAs	4/44.4 %	2/22.2 %	0	3/33.3 %
n-6 PUFAs	0	1/12.5 %	0	7/87.5 %
Control	0	1/11.1 %	3/33.3 %	5/66.7 %
Sham operation	10	0	0	0

PUFA polyunsaturated fatty acids